Finding the Fourth Proportional to 543,081.96, 749,470.28 and 313,635.09
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Solution
The fourth proportional to 543,081.96, 749,470.28 and 313,635.09 is: 432,826.35
Step by Step Solution
- Step 1: Write the proportion equation
543,081.96 : 749,470.28 = 313,635.09 : x - Step 2: Convert to fraction form
543,081.96/749,470.28 = 313,635.09/x - Step 3: Cross multiply
543,081.96x = 749,470.28 × 313,635.09 - Step 4: Simplify right side
543,081.96x = 235,060,179,896.26 - Step 5: Solve for x
x = 235,060,179,896.26/543,081.96 - Step 6: Final answer
x = 432,826.35
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.